Has anyone experienced the issue of your master relay protective diode falling by *shorting*? This happened while on the ground and just doing some manual work at the EFIS screen - system just went dead. Battery went into protective mode. I can replace it with a higher voltage rating diode, but I was surprised it would fail in this way and not open.
I'm more worried that if this is indeed a concerning failure mode, it would have taken out the main entire electrical system.
I confirmed the diode was properly installed to the right terminals, and has been replaced and system now works again. I'm not sure which model of diode it is offhand, something I had in my stash of parts, and what I used on my previous build - and perhaps that is part of the problem.
(EE by education, but I haven't dealt with power electronics design in a few decades)
I'm more worried that if this is indeed a concerning failure mode, it would have taken out the main entire electrical system.
I confirmed the diode was properly installed to the right terminals, and has been replaced and system now works again. I'm not sure which model of diode it is offhand, something I had in my stash of parts, and what I used on my previous build - and perhaps that is part of the problem.
(EE by education, but I haven't dealt with power electronics design in a few decades)